1. 20Bra: W. L. Bragg, “The Arrangement of Atoms in Crystals,”Philos. Mag. (Ser. 6), 40, 173–189 (1920). (Crys. Structure; Review)
2. 32Slo: H. A. Sloman, “Researches on Beryllium,”J. Inst. Met., 49, 365–388 (1932). (Equi Diagram; Experimental)
3. 50Kau: A. R. Kaufmann, P. Gordon, and D. W. Lillie, “The Metallurgy of Beryllium,”Trans. ASM, 42, 785–844 (1950). (Equi Diagram; Experimental)
4. 51Erw: N. D. Erway and R. L. Seifert, “Vapor Pressure of Beryllium Oxide,”J. Electrochem. Soc., 98, 83–88 (1951). (Thermo; Experimental)
5. 56Jef: G. A. Jeffrey, G. S. Parry, and R. L. Mozzi, “The Wurtzite-Type Compounds. I. Structures of Aluminum Nitride and Beryllium Oxide,”J. Chem. Phys., 25, 1024–1031 (1956). (Crys Structure; Experimental)